{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["cell line", "DNA", "cell type", "protein", "RNA"], "input": "Human erythroid 5-aminolevulinate synthase : promoter analysis and identification of an iron-responsive element in the mRNA ."}
{"cell line": [], "DNA": ["promoter", "iron-responsive element"], "cell type": [], "protein": ["Human erythroid 5-aminolevulinate synthase"], "RNA": ["mRNA"]}